Don't know exactly, but I am going to find out. I tink most of the chain is intact. Just the other end that broke is caught on something.

Assuming that two cylinders will have valves in the closed position. I just checked numbers 1 and 4 by using my compression gauge setup. I pulled out the check valve and screwed the adapter into the spark plug threads. Then I fired up the compresser to 60 or so lbs and attached the end of the hose to the disconnect. Then I heard the rush of air passing though the exhaust as is went past the bent valve. At least 1 and 4 are bent and I assume they all are. I don't think I heard anything pass through the intakes, but I still have the air filter and cover attached.

How am I ever going to convince my wife that these are reliable cars?

__________________
Michael LaFleur

'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)